SIOC_OUT          113 include/uapi/linux/soundcard.h #define	SIOC_INOUT	(SIOC_IN|SIOC_OUT)
SIOC_OUT          116 include/uapi/linux/soundcard.h #define	_SIOR(x,y,t)	((int)(SIOC_OUT|((sizeof(t)&SIOCPARM_MASK)<<16)|(x<<8)|y))
SIOC_OUT          123 include/uapi/linux/soundcard.h #define _SIOC_READ	SIOC_OUT